package zhiziyibai.simpleweather;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import org.litepal.crud.DataSupport;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;
import zhiziyibai.simpleweather.db.City;
import zhiziyibai.simpleweather.db.County;
import zhiziyibai.simpleweather.db.Province;
import zhiziyibai.simpleweather.util.HttpUtil;
import zhiziyibai.simpleweather.util.Utility;

/**
 * Created by 执子一白 on 2017/5/22.
 */

public class ChooseAreaFragment extends android.support.v4.app.Fragment {
    private static final String TAG = "ChooseAreaFragment";

    public static final int LEVEL_PROVINCE=0;

    public static final int LEVEL_CITY=1;

    public static final int LEVEL_COUNTY=2;

    public static final int LEVEL_MAIN=3;

    public static final int LEVEL_PATTERN=4;

    public static final int PATTERN_ONE=1;

    public static final int PATTERN_TWO=2;

    private ProgressDialog progressDialog;

    private TextView titleText;

    private Button backButton;

    private ListView listView;

    private ArrayAdapter<String> adapter;

    private List<String> dataList=new ArrayList<>();
    /*省*/
    private  List<Province> provinceList;
    /*市*/
    private List<City> cityList;
    /*县*/
    private List<County> countyList;

    private Province selectedProvince;

    private City selectedCity;

    private int currentLevel;

    private int patternNow=PATTERN_ONE;

    //初始化自定义布局

    //碎片

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        //return super.onCreateView(inflater, container, savedInstanceState);
        View view =inflater.inflate(R.layout.choose_area,container,false);
        titleText= (TextView) view.findViewById(R.id.title_text_choose_area);
        backButton= (Button) view.findViewById(R.id.back_button_choose_area);
        listView= (ListView) view.findViewById(R.id.list_view_choose_area);
        adapter=new ArrayAdapter<>(getContext(),android.R.layout.simple_list_item_1,dataList);
        listView.setAdapter(adapter);
        return view;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if (currentLevel==LEVEL_PROVINCE) {
                    selectedProvince=provinceList.get(position);
                    queryCities();
                }
                else if (currentLevel==LEVEL_CITY) {
                    selectedCity=cityList.get(position);
                    queryCounties();
                }else if(currentLevel==LEVEL_COUNTY&&patternNow==PATTERN_TWO){

                }else if (currentLevel==LEVEL_COUNTY&&patternNow==PATTERN_ONE){
                    String weatherId=countyList.get(position).getWeatherId();
                    Log.d(TAG, "onItemClick: "+weatherId);
                    if (getActivity() instanceof MainActivity){
                        /*选择城市状态*/
                        Intent intent=new Intent(getActivity(),WeatherActivity.class);
                        intent.putExtra("weather_id",weatherId);
                        startActivity(intent);
                        getActivity().finish();
                    }else if (getActivity() instanceof WeatherActivity){
                        /*处于更新状态*/
                        WeatherActivity activity= (WeatherActivity) getActivity();
                        activity.drawerLayout.closeDrawers();
                        activity.swipeRefreshLayout.setRefreshing(true);
                        activity.requestWeather(weatherId);
                    }
                }else if (currentLevel==LEVEL_MAIN){
                    if (id==0){
                        queryProvinces();
                    }else if (id==1){
                        patternChoose();
                    }
                }else if (currentLevel==LEVEL_PATTERN){
                    if (id==0){
                        Toast.makeText(getContext(),"单城市模式已启动",Toast.LENGTH_LONG).show();
                        initializeMain();

                    }else if (id==1){
                        Toast.makeText(getContext(),"该建筑仍在施工中……",Toast.LENGTH_LONG).show();
                    }
                }
            }
        });
        backButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (currentLevel==LEVEL_COUNTY) {
                    queryCities();
                } else if (currentLevel==LEVEL_CITY) {
                    queryProvinces();
                } else if (currentLevel==LEVEL_PROVINCE){
                    initializeMain();
                }else if (currentLevel==LEVEL_PATTERN){
                    initializeMain();
                }
            }
        });
        initializeMain();
    }
    /*初始化主目录*/
    private void initializeMain(){
        titleText.setText("选项");
        backButton.setVisibility(View.GONE);
        dataList.clear();
        dataList.add("选择地区");
        dataList.add("选择模式");
        adapter.notifyDataSetChanged();
        listView.setSelection(0);
        currentLevel=LEVEL_MAIN;

    }
    /*模式选项*/
    private void patternChoose(){
        titleText.setText("模式选择");
        backButton.setVisibility(View.VISIBLE);
        dataList.clear();
        dataList.add("单城市观察模式");
        dataList.add("双城市观察模式");
        adapter.notifyDataSetChanged();
        listView.setSelection(0);
        currentLevel=LEVEL_PATTERN;
    }
    /*查询全国所有省，优先在数据库查询，没有查询到再去服务器查询*/
    private void queryProvinces()
    {
        titleText.setText("中国");
        backButton.setVisibility(View.VISIBLE);
        //先在本地数据库查询数据
        provinceList= DataSupport.findAll(Province.class);
        if (provinceList.size()>0) {
            dataList.clear();
            for (Province province:provinceList) {
                dataList.add(province.getProvinceName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_PROVINCE;
        }//未找到调用queryFromServer向服务器查询
        else {
            String address="http://guolin.tech/api/china";
            queryFromServer(address,"province");
        }
    }
    /*查询全国所有市，优先在数据库查询，没有查询到再去服务器查询*/
    private void queryCities()
    {
        titleText.setText(selectedProvince.getProvinceName());
        backButton.setVisibility(View.VISIBLE);
        cityList=DataSupport.where("provinceid = ?",String.valueOf(selectedProvince.getId())).find(City.class);
        if (cityList.size()>0) {
            dataList.clear();
            for (City city:cityList) {
                dataList.add(city.getCityName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_CITY;
        }
        else
        {
            int provinceCode=selectedProvince.getProvinceCode();
            String address="http://guolin.tech/api/china/"+provinceCode;
            queryFromServer(address,"city");
        }
    }
    /*查询全国所有县，优先在数据库查询，没有查询到再去服务器查询*/
    private void queryCounties()
    {
        titleText.setText(selectedCity.getCityName());
        backButton.setVisibility(View.VISIBLE);
        countyList=DataSupport.where("cityid = ?",String.valueOf(selectedCity.getId())).find(County.class);
        if (countyList.size()>0) {
            dataList.clear();
            for (County county:countyList) {
                dataList.add(county.getCountyName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_COUNTY;
        } else {
            int provinceCode=selectedProvince.getProvinceCode();
            int cityCode=selectedCity.getCityCode();
            String address="http://guolin.tech/api/china/"+provinceCode+"/"+cityCode;
            queryFromServer(address,"county");
        }

    }
    /*根据传入的地址和类型从服务器上查询省市县数据*/
    private void queryFromServer(String address,final String type) {
        showProgressDialog();
        HttpUtil.sendOkHttpRequest(address, new Callback() {
            @Override
            public void onResponse(Call call, Response response) throws IOException {

                String responseText=response.body().string();
                boolean result=false;
                if ("province".equals(type)) {
                    result= Utility.handleProvinceResponse(responseText);
                } else if ("city".equals(type)) {
                    result=Utility.handleCityResponse(responseText,selectedProvince.getId());
                } else if ("county".equals(type)) {
                    result=Utility.handleCountyResponse(responseText,selectedCity.getId());
                }
                if (result) {//查询成功切回主线程进行UI操作
                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            closeProgressDialog();
                            if ("province".equals(type)) {
                                queryProvinces();
                            }
                            else if ("city".equals(type)) {
                                queryCities();
                            }
                            else if ("county".equals(type)) {
                                queryCounties();
                            }
                        }
                    });
                }

            }

            @Override
            public void onFailure(Call call, IOException e) {

                getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        closeProgressDialog();
                        Toast.makeText(getContext(),"加载失败",Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });
    }

    /*显示进度对话框*/
    private  void showProgressDialog()
    {
        if (progressDialog == null) {
            progressDialog = new ProgressDialog(getActivity());
            progressDialog.setMessage("正在加载...");
            progressDialog.setCanceledOnTouchOutside(false);
        }
        progressDialog.show();
    }
    /*关闭*/
    private void closeProgressDialog()
    {
        if (progressDialog != null) {
            progressDialog.dismiss();
        }
    }
}
